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Appts. and method of mobile communication transmission

A technology of mobile communication device and global mobile system, which is applied in the direction of control/equalization of transmission, parts of amplifying device, transmission system, etc., can solve the problem of undesired spurious signals and the like

Inactive Publication Date: 2004-10-27
GOOGLE TECHNOLOGY HOLDINGS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, however, power amplifiers account for a large portion of the total battery power consumption of transmitters and mobile communication devices
Also, there is a problem when changing the power amplifier bias voltage to adjust the power amplifier gain, which may generate undesired spurious signals

Method used

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  • Appts. and method of mobile communication transmission
  • Appts. and method of mobile communication transmission
  • Appts. and method of mobile communication transmission

Examples

Experimental program
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Embodiment Construction

[0014] figure 1 is an exemplary block diagram of an Enhanced Data Rates for Global Mobile System Evolution (EDGE) mobile communication device 100 according to one embodiment. Mobile communication device 100 may be a wireless telephone, cellular telephone, personal digital assistant, computer terminal, pager, or any other device capable of sending and receiving data over an EDGE mobile communication network. The mobile communication device 100 includes a controller 110 , a transmitter 120 , an antenna 130 , a signal router 140 , a receiver 150 , a memory 160 , and an input-output circuit 170 . Transmitter 120 includes modulator 122 and power amplifier 124 . Input output circuitry 170 includes audio input circuitry such as a microphone or line input, audio output circuitry such as a speaker or line output, a display, a keyboard, data input and output circuitry, or any other input and output circuitry. Memory 160 may be a transistor based memory, random access memory, read only...

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Abstract

An apparatus and method for transmission power amplifier bias control in an enhanced data rate for global system mobile evolution mobile communication device. The apparatus can include a transmitter configured to transmit information on an enhanced data rate for global system mobile evolution network at a first transmitter output power. The transmitter can include a modulator configured to receive an input signal and map information in the input signal to symbols represented by eight phase offsets and a power amplifier configured to provide the first transmitter output power for transmitting the symbols represented by eight phase offsets. The apparatus can also include a controller configured to adjust a first bias condition of the power amplifier to a second bias condition based on a changed parameter of operation related to the data stored in a memory.

Description

technical field [0001] The present invention discloses an apparatus and method related to mobile communication device transmission. More particularly, the present disclosure relates to an apparatus and method for transmitting power amplifier bias control in an Enhanced Data Rate for Global Mobile System Evolution (EDGE) mobile communication device. Background technique [0002] Currently, transmitters in mobile communication devices use power amplifiers to transmit signals. For example, a mobile communication device may receive an expected transmit output power from a base station. This desired output power can be used to adjust the gain of the power amplifier within the transmitter that transmits the signal. Unfortunately, however, power amplifiers account for a large portion of the total battery power consumption of transmitters and mobile communication devices. Also, there is a problem when changing the power amplifier bias voltage to adjust the power amplifier gain, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H03F1/02H03F1/06H04B1/04
CPCH03F1/0205H04B1/0475H03F1/0261H04W88/02H03F1/02
Inventor 弗朗西斯·福里斯特阿尔明·克劳姆斯多夫埃内斯特·席尔曼罗伯特·S·特罗克
Owner GOOGLE TECHNOLOGY HOLDINGS LLC